51
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52
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Zhu RH, Shi XX. Practical and highly stereoselective method for the preparation of several chiral arylsulfinamides and arylsulfinates based on the spontaneous crystallization of diastereomerically pure N-benzyl-N-(1-phenylethyl)-arylsulfinamides. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.tetasy.2011.01.028] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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53
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Voss F, Herdtweck E, Bach T. Hydrogen bond induced enantioselectivity in Mn(salen)-catalysed sulfoxidaton reactions. Chem Commun (Camb) 2011; 47:2137-9. [DOI: 10.1039/c0cc04636a] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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54
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Wojaczyńska E, Wojaczyński J. Enantioselective synthesis of sulfoxides: 2000-2009. Chem Rev 2010; 110:4303-56. [PMID: 20415478 DOI: 10.1021/cr900147h] [Citation(s) in RCA: 324] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Elzbieta Wojaczyńska
- Department of Organic Chemistry, Faculty of Chemistry, Wrocław University of Technology, Wybrzeze Wyspiańskiego 27, 50 370 Wrocław, Poland.
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55
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Robak MT, Herbage MA, Ellman JA. Synthesis and applications of tert-butanesulfinamide. Chem Rev 2010; 110:3600-740. [PMID: 20420386 DOI: 10.1021/cr900382t] [Citation(s) in RCA: 908] [Impact Index Per Article: 64.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- MaryAnn T Robak
- Department of Chemistry, University of California, Berkeley, California 94720, USA
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56
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García D, Foubelo F, Yus M. Reductive Ring-Opening of Phthalan and Isochroman: Application to the Stereoselective Synthesis of Tetrahydroisoquinolines and Tetrahydrobenzazepines. European J Org Chem 2010. [DOI: 10.1002/ejoc.201000111] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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57
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Raghavan S, Krishnaiah V, Sridhar B. Asymmetric synthesis of the potent HIV-protease inhibitor, nelfinavir. J Org Chem 2010; 75:498-501. [PMID: 20000659 DOI: 10.1021/jo902048t] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An asymmetric synthesis of nelfinavir is described starting from acrolein and (S)-methyl phenyl sulfoxide. The key features include (a) stereoselective preparation of a beta-protected amino-gamma,delta-unsaturated sulfoxide by the reaction of an alpha-sulfinyl carbanion with an unsaturated t-butyl sulfinylimine, (b) stereoselective bromohydrin formation using the pendant sulfoxide group as an intramolecular nucleophile, and (c) use of commercially or readily prepared inexpensive starting materials.
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Affiliation(s)
- Sadagopan Raghavan
- Organic Division I, Indian Institute of Chemical Technology, Hyderabad 500 007, India.
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58
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Yus M, Foubelo F, K. Dema H. Enantioselective Synthesis of α-Methylene-γ-butyrolactams Using N-tert-Butanesulfinamides. HETEROCYCLES 2010. [DOI: 10.3987/com-10-s(e)94] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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59
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Abrunhosa-Thomas I, Betz A, Denancé M, Dez I, Gaumont AC, Gulea M. Synthesis of chiral thiazoline ligands tethered to a sulfur function and first immobilization of a thiazoline-ligand. HETEROATOM CHEMISTRY 2010. [DOI: 10.1002/hc.20603] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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60
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Yus M, Foubelo F, K. Dema H. Stereoselective Synthesis of α-Methylene-γ-butyrolactams from Ethyl 2-(Bromomethyl)acrylate and Chiral Sulfinyl Aldimines Mediated by Indium. HETEROCYCLES 2010. [DOI: 10.3987/com-09-s(s)27] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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61
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Medjahdi M, González-Gómez JC, Foubelo F, Yus M. Stereoselective synthesis of azetidines and pyrrolidines from N-tert-butylsulfonyl(2-aminoalkyl)oxiranes. J Org Chem 2009; 74:7859-65. [PMID: 19764731 DOI: 10.1021/jo9016666] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Base-induced cyclization of enantiopure (2-aminoalkyl)oxiranes allowed the stereospecific formation of pyrrolidin-3-ols and/or 2-(hydroxymethyl)azetidines, depending on the reaction conditions. The oxidation of 2-(hydroxymethyl)azetidines led to azetidine-2-carboxylic acids in high yields.
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Affiliation(s)
- Mohamed Medjahdi
- Departamento de Química Orgánica, Facultad de Ciencias and Instituto de Síntesis Orgánica, Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
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62
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Raghavan S, Krishnaiah V. An Efficient Stereoselective Synthesis of Penaresidin A from (E)-2-Protected Amino-3,4-unsaturated Sulfoxide. J Org Chem 2009; 75:748-61. [DOI: 10.1021/jo9022638] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sadagopan Raghavan
- Organic Division I, Indian Institute of Chemical Technology, Hyderabad 500 007, India
| | - V. Krishnaiah
- Organic Division I, Indian Institute of Chemical Technology, Hyderabad 500 007, India
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63
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Stereoselective synthesis of 3-substituted tetrahydroisoquinolines from phthalan and chiral N-sulfinylimines. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.06.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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64
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Wu Y, Liu J, Li X, Chan ASC. Vanadium-Catalyzed Asymmetric Oxidation of Sulfides Using Schiff Base Ligands Derived from β-Amino Alcohols with Two Stereogenic Centers. European J Org Chem 2009. [DOI: 10.1002/ejoc.200900289] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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65
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Seenivasaperumal M, Federsel HJ, Szabó K. Mechanism of the Asymmetric Sulfoxidation in the Esomeprazole Process: Effects of the Imidazole Backbone for the Enantioselection. Adv Synth Catal 2009. [DOI: 10.1002/adsc.200800753] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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66
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Rowlands GJ, Seacome RJ. Enantiospecific synthesis of [2.2]paracyclophane-4-thiol and derivatives. Beilstein J Org Chem 2009; 5:9. [PMID: 19478964 PMCID: PMC2686273 DOI: 10.3762/bjoc.5.9] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2009] [Accepted: 02/28/2009] [Indexed: 11/23/2022] Open
Abstract
This paper describes a simple route to enantiomerically enriched [2.2]paracyclophane-4-thiol via the stereospecific introduction of a chiral sulfoxide to the [2.2]paracyclophane skeleton. The first synthesis of an enantiomerically enriched planar chiral benzothiazole is also reported.
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Affiliation(s)
- Gareth J Rowlands
- Institute of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North, New Zealand.
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67
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Ferreira F, Botuha C, Chemla F, Pérez-Luna A. tert-Butanesulfinimines: structure, synthesis and synthetic applications. Chem Soc Rev 2009; 38:1162-86. [PMID: 19421587 DOI: 10.1039/b809772k] [Citation(s) in RCA: 288] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Since Ellman's seminal works, over the past ten years tert-butanesulfinimines have proved to be useful chiral amino intermediates for organic synthesis. Through highly stereoselective reactions, amongst which reductions, nucleophilic 1,2-additions and ylide condensations, a broad range of nitrogen-containing compounds has been synthesized. Although the stereoselectivity levels are high in most cases, the sense of the stereoinduction is generally not predictable. The object of this critical review is to present the models proposed to rationalize the stereochemical outcome of the reactions involving tert-butanesulfinimines and to point out an obvious lack of homogeneity amongst them (128 references).
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Affiliation(s)
- Franck Ferreira
- UPMC Univ Paris 06, UMR 7611, Laboratoire de Chimie Organique, Institut de Chimie Moléculaire (FR 2769), case 183, 4 place Jussieu, F-75005, Paris, France.
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68
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Voituriez A, Pérez-Luna A, Ferreira F, Botuha C, Chemla F. Stereo- and Enantioselective Synthesis of Acetylenic 2-Amino-1,3-diol Stereotriads. Org Lett 2009; 11:931-4. [DOI: 10.1021/ol802912f] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Arnaud Voituriez
- UPMC Univ Paris 06, UMR7611, Laboratoire de Chimie Organique, Institut de Chimie Moléculaire (FR2769), case 183, 4 place Jussieu, F-75252 Paris Cedex 05, France
| | - Alejandro Pérez-Luna
- UPMC Univ Paris 06, UMR7611, Laboratoire de Chimie Organique, Institut de Chimie Moléculaire (FR2769), case 183, 4 place Jussieu, F-75252 Paris Cedex 05, France
| | - Franck Ferreira
- UPMC Univ Paris 06, UMR7611, Laboratoire de Chimie Organique, Institut de Chimie Moléculaire (FR2769), case 183, 4 place Jussieu, F-75252 Paris Cedex 05, France
| | - Candice Botuha
- UPMC Univ Paris 06, UMR7611, Laboratoire de Chimie Organique, Institut de Chimie Moléculaire (FR2769), case 183, 4 place Jussieu, F-75252 Paris Cedex 05, France
| | - Fabrice Chemla
- UPMC Univ Paris 06, UMR7611, Laboratoire de Chimie Organique, Institut de Chimie Moléculaire (FR2769), case 183, 4 place Jussieu, F-75252 Paris Cedex 05, France
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69
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Clayden J, Lemiègre L, Morris GA, Pickworth M, Snape TJ, Jones LH. Helix Persistence and Breakdown in Oligoureas of Metaphenylenediamine: Apparent Diastereotopicity as a Spectroscopic Marker of Helix Length in Solution. J Am Chem Soc 2008; 130:15193-202. [DOI: 10.1021/ja805758v] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jonathan Clayden
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom, and Pfizer Central Research, Sandwich CT12 3NT, United Kingdom
| | - Loïc Lemiègre
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom, and Pfizer Central Research, Sandwich CT12 3NT, United Kingdom
| | - Gareth A. Morris
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom, and Pfizer Central Research, Sandwich CT12 3NT, United Kingdom
| | - Mark Pickworth
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom, and Pfizer Central Research, Sandwich CT12 3NT, United Kingdom
| | - Timothy J. Snape
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom, and Pfizer Central Research, Sandwich CT12 3NT, United Kingdom
| | - Lyn H. Jones
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom, and Pfizer Central Research, Sandwich CT12 3NT, United Kingdom
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70
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Scott ME, Lautens M. Synthesis of Highly Functionalized Pyrrolidines via a Selective Iodide-Mediated Ring Expansion of Methylenecyclopropyl Amides. J Org Chem 2008; 73:8154-62. [DOI: 10.1021/jo802049u] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mark E. Scott
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
| | - Mark Lautens
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
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71
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Mori T, Higashibayashi S, Goto T, Kohno M, Satouchi Y, Shinko K, Suzuki K, Suzuki S, Tohmiya H, Hashimoto K, Nakata M. Total synthesis of siomycin A: construction of synthetic segments. Chem Asian J 2008; 3:984-1012. [PMID: 18464237 DOI: 10.1002/asia.200800032] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The five practical segments for the total synthesis of siomycin A, that is, the dehydropiperidine segment A (5), the pentapeptide segment B (3), the dihydroquinoline segment C (6), and the beta-phenylselenoalanine dipeptide segments D (7) and E (4), were synthesized. Segment A (5) was constructed by the coupling of the azomethine ylide and the chiral sulfinimine, followed by the stereoselective reduction of the six-membered imine function. Segment B (3) was synthesized by the phenylselenylation of the beta-lactone, stereoselective vinylzinc addition to the chiral sulfinimine, and oxazoline-thioamide conversion. Segment C (6) was prepared by the one-pot olefination of the tetrahydroquinoline N-oxide using triflic anhydride and triethylamine, stereoselective reduction of the methyl ketone function, and regioselective Yb(OTf)(3)-catalyzed epoxide opening by the amino group. Segments D (7) and E (4) were synthesized by coupling of the properly protected beta-phenylselenoalanines.
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Affiliation(s)
- Tomonori Mori
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
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72
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Guerrini A, Varchi G, Samorì C, Battaglia A. Synthesis of α2,2,β3-Diamino Acids by Double Stereodifferentiation Aldol Addition of Oxazolidinone Enolates toN-(tert-Butylsulfinyl) Imines. European J Org Chem 2008. [DOI: 10.1002/ejoc.200800356] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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73
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Datta M, Buglass AJ, Hong CS, Lim JH. N-Phenyl-adamantane-1-sulfinamide. Acta Crystallogr Sect E Struct Rep Online 2008; 64:o1393. [PMID: 21203113 PMCID: PMC2962026 DOI: 10.1107/s1600536808019570] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2008] [Accepted: 06/27/2008] [Indexed: 11/10/2022]
Abstract
In the racemic title compound, C16H21NOS, the molecules are packed into polymeric chains in the b-axis direction and are linked along the b axis by N—H⋯O and C—H⋯O hydrogen bonds.
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74
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Grach G, Reboul V, Metzner P. Screening of amino sulfur ferrocenes as catalysts for the enantioselective addition of diethylzinc to benzaldehyde. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.tetasy.2008.06.031] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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75
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Clayden J, Worrall C, Moran W, Helliwell M. Enantioselective Synthesis of an Atropisomeric Diaryl Ether. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200705660] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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76
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Clayden J, Worrall C, Moran W, Helliwell M. Enantioselective Synthesis of an Atropisomeric Diaryl Ether. Angew Chem Int Ed Engl 2008; 47:3234-7. [DOI: 10.1002/anie.200705660] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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77
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Sasraku-Neequaye L, MacPherson D, Stockman RA. Convenient synthesis of chiral non-racemic S-mesityl sulfinimines. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2007.12.067] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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78
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Yus M, Foubelo F, Medjahdi M, C. González-Gómez J. Stereoselective Synthesis of Pyrrolidin-3-ols from Homoallylamines. HETEROCYCLES 2008. [DOI: 10.3987/com-08-s(n)45] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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79
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Rowlands GJ. The synthesis of enantiomerically pure [2.2]paracyclophane derivatives. Org Biomol Chem 2008; 6:1527-34. [DOI: 10.1039/b800698a] [Citation(s) in RCA: 92] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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80
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Jung HH, Floreancig PE. Gold-Catalyzed Synthesis of Oxygen- and Nitrogen-Containing Heterocycles from Alkynyl Ethers: Application to the Total Synthesis of Andrachcinidine. J Org Chem 2007; 72:7359-66. [PMID: 17691845 DOI: 10.1021/jo071225w] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In this paper we report that homopropargylic ethers containing pendent oxygen or nitrogen nucleophiles react with electrophilic gold catalysts in the presence of water to form saturated heterocyclic ketones. Mechanistic studies demonstrated that the reactions proceed through a sequence of alkyne hydration, alkoxy group elimination, and intramolecular conjugate addition. Diastereoselectivities for tetrahydropyran and piperidine formation are very good to excellent. This method has been applied to an efficient total synthesis of the natural product andrachcinidine. Utilizing propargylic ether substrates rather than homopropargylic ethers promotes regioselective hydration of internal alkynes, thereby expanding the scope of products that can be accessed through this protocol.
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Affiliation(s)
- Hyung Hoon Jung
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
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81
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Colyer JT, Andersen NG, Tedrow JS, Soukup TS, Faul MM. Reversal of diastereofacial selectivity in hydride reductions of N-tert-butanesulfinyl imines. J Org Chem 2007; 71:6859-62. [PMID: 16930038 DOI: 10.1021/jo0609834] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A variety of N-tert-butanesulfinyl imines were reduced with NaBH4 in THF containing 2% water to provide the corresponding secondary sulfinamides in high yield and diastereoselectivity. By using the same sulfinyl imine starting materials and changing the reductant to L-Selectride, the stereoselectivity could be efficiently reversed to afford the opposite product diastereomer in high yield and selectivity.
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Affiliation(s)
- John T Colyer
- Chemistry Process Research and Development, Amgen Inc., Thousand Oaks, CA 91320-1799, USA
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82
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Khiar N, Mallouk S, Valdivia V, Bougrin K, Soufiaoui M, Fernández I. Enantioselective Organocatalytic Oxidation of Functionalized Sterically Hindered Disulfides. Org Lett 2007; 9:1255-8. [PMID: 17341090 DOI: 10.1021/ol070056z] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[structure: see text]. The first study on enantioselective oxidation of functionalized sterically hindered disulfides is reported. This study shows that the Shi organocatalytic system using carbohydrate-derived ketone with oxone is superior to the Ellman-Bolm vanadium catalyst in terms of chemical yield and enantioselectivity. Whereas the latter system afforded mostly racemic thiosulfinates in low to moderate yields, the former one afforded thiosulfinates with up to 96% ee.
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Affiliation(s)
- Noureddine Khiar
- Instituto de Investigaciones Químicas, C.S.I.C-Universidad de Sevilla, c/ Américo Vespucio, 49, Isla de la Cartuja, 41092 Sevilla, Spain.
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83
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Huang H, Guo X, Hu W. Efficient Trapping of Oxonium Ylides with Imines: A Highly Diastereoselective Three-Component Reaction for the Synthesis of β-Amino-α-hydroxyesters with Quaternary Stereocenters. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200604389] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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84
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Huang H, Guo X, Hu W. Efficient Trapping of Oxonium Ylides with Imines: A Highly Diastereoselective Three-Component Reaction for the Synthesis of β-Amino-α-hydroxyesters with Quaternary Stereocenters. Angew Chem Int Ed Engl 2007; 46:1337-9. [PMID: 17203491 DOI: 10.1002/anie.200604389] [Citation(s) in RCA: 99] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Haoxi Huang
- Department of Chemistry, East China Normal University, Shanghai 200062, P.R. China
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85
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Huang Z, Lai H, Qin Y. Syntheses of Novel Chiral Sulfinamido Ligands and Their Applications in Diethylzinc Additions to Aldehydes. J Org Chem 2007; 72:1373-8. [PMID: 17288383 DOI: 10.1021/jo062249q] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A novel class of sulfinamido alcohol ligands 1-6 was synthesized from (S)-tert-butanesulfinamide. These ligands showed excellent catalytic activities and enantiomeric selectivities in asymmetric additions of diethylzinc to aromatic aldehydes.
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Affiliation(s)
- Zhiyan Huang
- Department of Chemistry of Medicinal Natural Products and Key Laboratory of Drug Targeting, West China School of Pharmacy, Sichuan University, Chengdu 610041, P. R. China
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86
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Mononuclear diastereopure non-heme Fe(II) complexes of pentadentate ligands with pyrrolidinyl moieties: Structural studies, and alkene and sulfide oxidation. Inorganica Chim Acta 2007. [DOI: 10.1016/j.ica.2006.08.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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87
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Risseeuw MDP, Mazurek J, van Langenvelde A, van der Marel GA, Overkleeft HS, Overhand M. Synthesis of alkylated sugar amino acids: conformationally restricted l-Xaa-l-Ser/Thr mimics. Org Biomol Chem 2007; 5:2311-4. [PMID: 17609763 DOI: 10.1039/b705750d] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two synthetic strategies for the generation of delta-substituted pyranoid sugar amino acids (SAAs) are evaluated. The first employs chiral nonracemic tert-butane sulfinamides as key reagents. Regardless of the stereochemistry of the applied sulfinamide, the product formed has a stereochemistry resembling that of a d amino acid at C7. Direct Grignard reaction on formyl-tetra-O-benzyl-beta-D-C-glucopyranoside in the second strategy and subsequent Mitsunobu inversion, yields the l,l-dipeptide isosters.
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Affiliation(s)
- Martijn D P Risseeuw
- Leiden Institute of Chemistry, Department of Bioorganic Synthesis, PO box 9502, 2300 RA, Leiden, The Netherlands
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88
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Botuha C, Chemla F, Ferreira F, Pérez-Luna A, Roy B. Allenylzinc reagents: new trends and synthetic applications. NEW J CHEM 2007. [DOI: 10.1039/b706541h] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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89
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Dougherty AM, McDonald FE, Liotta DC, Moody SJ, Pallas DC, Pack CD, Merrill AH. Synthesis of 1-deoxysphingosine derivatives with conformationally restricted pyrrolidinediol head groups. Org Lett 2006; 8:649-52. [PMID: 16468733 PMCID: PMC4604444 DOI: 10.1021/ol052839v] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[structure: see text] A family of cyclic 1-deoxysphingolipid derivatives of structure 4 has been designed and synthesized, which may serve as tumorigenesis suppressors for various cancers. Compound 4 is a second-generation analogue developed from sphingosine (1), in which a hydroxyl substituent is moved from C1 to C5 and a methylene is added for conformational rigidity between the C2-nitrogen substituent and C4. The synthetic chemistry for pyrrolidine ring closure at C3-C4 features ring-closing metathesis followed by hydroboration-oxidation.
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Affiliation(s)
| | | | | | - Steven J. Moody
- Department of Biochemistry, and Winship Cancer Institute, Emory University
| | - David C. Pallas
- Department of Biochemistry, and Winship Cancer Institute, Emory University
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90
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Kelly P, Lawrence SE, Maguire AR. Asymmetric Synthesis of Aryl Benzyl Sulfoxides by Vanadium-Catalysed Oxidation: A Combination of Enantioselective Sulfide Oxidation and Kinetic Resolution in Sulfoxide Oxidation. European J Org Chem 2006. [DOI: 10.1002/ejoc.200600320] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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91
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92
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Blot V, Brièr JF, Davoust M, Minière S, Reboul V, Metzner P. Developments of Asymmetric Synthesis Mediated by Chiral Sulfur Reagents. PHOSPHORUS SULFUR 2006. [DOI: 10.1080/10426500590910747] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Virginie Blot
- a Laboratoire de Chimie Moléculaire et Thio-organique (UMR CNRS 6507), ENSICAEN , Caen, France
| | - Jean-François Brièr
- a Laboratoire de Chimie Moléculaire et Thio-organique (UMR CNRS 6507), ENSICAEN , Caen, France
| | - Marion Davoust
- a Laboratoire de Chimie Moléculaire et Thio-organique (UMR CNRS 6507), ENSICAEN , Caen, France
| | - Stéphanie Minière
- a Laboratoire de Chimie Moléculaire et Thio-organique (UMR CNRS 6507), ENSICAEN , Caen, France
| | - Vincent Reboul
- a Laboratoire de Chimie Moléculaire et Thio-organique (UMR CNRS 6507), ENSICAEN , Caen, France
| | - Patrick Metzner
- a Laboratoire de Chimie Moléculaire et Thio-organique (UMR CNRS 6507), ENSICAEN , Caen, France
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93
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GAO A, WANG M, WANG D, ZHANG L, LIU H, TIAN W, SUN L. Asymmetric Oxidation of Sulfides Catalyzed by Vanadium(IV) Complexes of Dibromo- and Diiodo-Functionalized Chiral Schiff Bases. CHINESE JOURNAL OF CATALYSIS 2006. [DOI: 10.1016/s1872-2067(06)60040-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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94
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Abstract
The development of an enantioselective sulfide oxidation involving a chiral iron catalyst and aqueous hydrogen peroxide as oxidant is described. In the presence of a simple carboxylic acid, or a carboxylate salt, the reaction affords sulfoxides with remarkable enantioselectivities (up to 96 % ee) in moderate to good yields. The influence of the structure of the additive on the reaction outcome is reported. In the sulfoxide-to-sulfone oxidation a kinetic resolution (with s = 4.8) occurs, which, however, plays only a negligible role in the overall enantioselective process. Furthermore, a positive nonlinear relationship between the ee of the product and that of the catalyst has been found. On the basis of these observations, a possible catalyst structure is proposed.
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Affiliation(s)
- Julien Legros
- Institut für Organische Chemie, Rheinisch-Westfälische Technische Hochschule, Professor-Pirlet-Strasse 1, 52056 Aachen, Germany
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95
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Gallou I, Senanayake CH. cis-1-Amino-2-indanol in Drug Design and Applications to Asymmetric Processes. Chem Rev 2006; 106:2843-74. [PMID: 16836302 DOI: 10.1021/cr050970a] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Isabelle Gallou
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, USA
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96
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Clayden J, Stimson CC, Keenan M. Contra-Friedel–Crafts tert-butylation of substituted aromatic rings via directed metallation and sulfinylation. Chem Commun (Camb) 2006:1393-4. [PMID: 16550277 DOI: 10.1039/b600181e] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Directed metallation and sulfinylation yields sulfoxides which undergo ipso nucleophilic aromatic substitution with tertiary and secondary alkyllithiums, giving aromatic rings bearing alkyl groups generally incompatible with directed metallation methods and with regioselectivity complementary with classical Friedel-Crafts substitution.
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Affiliation(s)
- Jonathan Clayden
- School of Chemistry, University of Manchester, Oxford Road, Manchester, UKM13 9PL.
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97
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Ferreira F, Audouin M, Chemla F. Influence of HMPA on the Stereochemical Outcome of the Addition of a Racemic Allenylzinc onto Enantiopure N-tert-Butanesulfinimines: Stereoselective Access to Enantiopurecis-Ethynylaziridines. Chemistry 2005; 11:5269-78. [PMID: 15997436 DOI: 10.1002/chem.200500268] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
In the presence of 60 equivalents of HMPA, the condensation of the racemic allenylzinc derived from 1-chloro-3-trimethylsilylpropyne onto enantiopure non-alpha-branched N-tert-butanesulfinimines was proven to give access to the corresponding cis-ethynylaziridines as the major products. The good cis selectivity observed presumably resulted from a high kinetic resolution with the allenylzinc being partially configurationally labile with respect to the time scale defined by the rate of the reaction. Both single crystal X-ray analysis and semiempirical calculations conducted at the MM2 and AM1 levels of theory proved that the reaction certainly occurred through a preferred synclinal transition state in a supra- or antarafacial S(E)2' process. In all cases, chromatographic purification over silica gel allowed the cis-ethynyl-N-tert-butanesulfinylaziridines to be obtained as diastereo- and enantiomerically pure compounds (dr >98:2 and ee >99%).
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Affiliation(s)
- Franck Ferreira
- Laboratoire de Chimie Organique, UMR 7611, Université Pierre et Marie Curie, Tour 44-45, 2ème étage, Boîte 183, 4 place Jussieu, 75252 Paris Cedex 05, France.
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98
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Wang X, Wang X, Guo H, Wang Z, Ding K. Self-Supported Heterogeneous Titanium Catalysts for Enantioselective Carbonyl-Ene and Sulfoxidation Reactions. Chemistry 2005; 11:4078-88. [PMID: 15861470 DOI: 10.1002/chem.200500239] [Citation(s) in RCA: 85] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
A new strategy for the heterogenization of chiral titanium complexes was developed by the in situ assembly of bridged multitopic BINOL ligands with [Ti(OiPr)4] without using a support. The assembled heterogeneous catalysts (self-supported) showed excellent enantioselectivity in both the carbonyl-ene reaction of alpha-methylstyrene with ethyl glyoxylate (up to 98 % ee) and the oxidation of sulfides (up to >99 % ee). The catalytic performance of these heterogeneous catalytic systems was comparable or even superior to that attained with their homogeneous counterparts. The spacers between the two BINOL units of the ligands in the assembled catalysts had significant impact on the enantioselectivity of the carbonyl-ene reaction. This demonstrates the importance of the supramolecular structures of the assemblies on their catalytic behavior. In the catalysis of sulfoxidation, the self-supported heterogeneous titanium catalysts were highly stable and could be readily recycled and reused for over one month (at least eight cycles) without significant loss of activity and enantioselectivity (up to >99.9 % ee). The features of these self-supported catalysts, such as facile preparation, robust chiral structure of solid-state catalysts, high density of the catalytically active units in the solids, as well as easy recovery and simple recycling, are particularly important in developing methods for the synthesis of optically active compounds in industrial processes.
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Affiliation(s)
- Xisheng Wang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences
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99
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Han Z, Krishnamurthy D, Grover P, Fang QK, Su X, Wilkinson HS, Lu ZH, Magiera D, Senanayake CH. Practical and highly stereoselective technology for preparation of enantiopure sulfoxides and sulfinamides utilizing activated and functionally differentiated N-sulfonyl-1,2,3-oxathiazolidine-2-oxide derivatives. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.03.122] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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100
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Colonna S, Pironti V, Drabowicz J, Brebion F, Fensterbank L, Malacria M. Enantioselective Synthesis of Thiosulfinates and of Acyclic Alkylidenemethylene Sulfide Sulfoxides. European J Org Chem 2005. [DOI: 10.1002/ejoc.200400892] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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